A QCD sum rule study of the light scalar mesons

2005/12/31 by Hee-Jung Lee · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1140/epja/i2006-10104-y

published as Eur.Phys.J.A30:423-426,2006 · 6 pages, 3 figures, changed title, revised manuscript

arxiv created 2006/02/18 · openalex publication_date 2006/10/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

We examine the interpretation of the light scalar meson nonet as bound states of the scalar diquark and the scalar antidiquark using the QCD sum rule approach. Our results are obtained by means of the operator product expansion (OPE) including operators up to dimension 8. They show no evidence of the coupling of the tetraquark states to the light scalar meson nonet.

Citations

• Diquarks and Exotic Spectroscopy

Cited by

• Probing Kaons as Light-Strange Tetraquarks through Spectral and Decay Dynamics
• Mixings of four-quark components in light nonsinglet scalar mesons in QCD sum rules